Creating a sector search pattern
To create a Sector Search pattern follow the steps below:
1. Select
[Sector Search]
from the
[Search Pattern]
options:
[Chart app >
Menu > Navigate > Search patterns]
2.
Set Commence Search Point (CSP)
i.
Manually input the
[CSP]
coordinates; a
[Range]
and
[Bearing]
are
displayed to direct your vessel towards it.
ii. Alternatively, set the
[CSP]
as your vessel’s current location by
selecting the
(1)
[CSP Shortcut]
button.
3.
Set Drift
i.
Drop the
[Datum Marker]
in the water and select
[Marker dropped]
.
ii. Wait for the
[Datum Marker]
to drift through the water.
iii. Return to the
[Datum Marker]
in the new location and select
[Drift
position]
to calculate the
[Set (Direction)]
and
[Drift (Speed)]
.
iv. Alternatively, you can use your vessel’s
[Heading]
and
[SOG]
to define
the set and drift by selecting the
(2)
[Set / Drift shortcut]
icon.
4.
Set Track spacing / Radius, Search Speed, and Leg time
[All 3 variables are dependent on each other. One variable is always the
product of the other two.]
i.
Select one of the variables by selecting the
(3)
[Output]
icon.
ii. The selected variable will then be calculated as a result of changes
made to the other two variables.
Variable
Maximum Value
Track spacing / Radius
5 nm / 5 sm / 5 Km
Search Speed
40 Kts / 46 Mph / 74 Kph
Leg Time
59m 59s
1.
[CSP Shortcut]
2.
[Set / Drift Shortcut]
3.
[Output]
5.
Create search route
[After all the above steps have been completed you can create your
SAR pattern.]
i.
To create a search pattern, select the
[Create search route]
button
in the bottom right of the screen.
ii. The creation page will display your SAR pattern data and its location
on the Chart app.
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